Controller for light therapy system



FIG. 1 is a top perspective view of a controller for light therapy system;

FIG. 2 is a top view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a rear view thereof; and,

FIG. 7 is a front view thereof.

The broken lines show portions of the controller for light therapy system that form no part of the claimed design. 

CLAIM The ornamental design for a controller for light therapy system, as shown and described. 